Toshiba Strata DK 280 Installation Manual page 137

Follow these steps to configure the PEKU to support a
separate BGM source.
1. Remove the PCB from its protective packaging.
2. Cut the W5 (BGM) jumper wire on the PEKU PCB.
Refer to Chapter 6-Peripheral Installation for
3.
installation procedures for BGM connection.
4. In Program 10-2, set LED 09 on to enable the
PEKU (Port 002) BGM source to be sent to digital
and electronic telephone speakers and/or PIOU,
PIOUS, PEPU PCBs. Use Program 19 to identify
the slot in which the PEKU supporting the BGM
source will be installed.
4.5.2 PEKU Installation Procedures
Install the PEKU in accordance with the following
steps:
Remove
the PCB from its protective packaging.
2. Ensure the PEKU has been configured for the
appropriate hardware options (refer to Subsection
4.4.1).
Note:
Ensure the PEKU's component side is facing
right when installing it in the KSU.
3. Insert the PEKU into the appropriate slot, and
apply firm, even pressure to ensure proper mating
of connectors.
4. After installing the PEKU, gently pull the PCB
outward. If the connectors are properly mated, a
slight resistance will be felt.
4.5.3 PEKU Wiring
Refer to Chapter 7-Wiring Diagrams for PEKU
4.5.4 PEKU Programming Overview
The following programming parameters may be
specified for the PEKU:
Program 03
Specify Code 21 to indicate a non-optioned station
line PEKU.
Specify Code 22 to indicate a PEKU configured for
Speaker OCA.
January 1996
Specify Code 23 to indicate a PEKU configured
an HDSS console.
Specify Code 24 to indicate a PEKU conigured for
Speaker OCA and an HDSS console.
Door phones, the BGM source connection, and
external amplifiers do not require a special code.
Note:
If there are no PEKU options, Program 03 can
be skipped, and Program 91 can be run
instead.
Programs 10-2 and 19-BGM connection.
Programs
1
Programs 28 and 29-HDSS console assignments.
Programs 77-1, 77-2, 79-HDCB and door phone
ringing assignments.
4.6 Standard Telephone Interface
and PSTU, Versions 1
Unit (RSTU
The RSTU and the PSTU both provide an interface
between standard telephones,
mail machines, fax machines, modems, and other two-
wire (one-pair) devices and the system. Each RSTU
and PSTU adds eight standard telephone lines to the
system. There are two versions of the PSTU: the
and the RSTU are identical except for the distinctions
noted as follows. Only one telephone (or device) can
be connected to a PSTU (1 or 2) or RSTU (1 or 2)
port. If more than one telephone or device is
connected to a port, ringing or Message Waiting may
not function.
two versions. V.3 and V.4. The original V.3 version
of the PSTU1 has a square wave ring generator
that is fixed at 19OV P-P, while the later V.4
version has a square wave ring generator that can
be set at 19OV P-P or 130V P-P with the W1
jumper. The PSTU2 also has thel9OV P-P or
Note:
Most standard telephones
devices require the 19OV P-P level; however,
some devices may experience ring-trip with
for
external amplifiers to ports.
a
BGM source, voice
a n d
two-wire
4-23